Abstract: . . .  left visual momentum from reading left - - to to - - right right suggests response to the right of the name suggests response to the right of the name 12 12 The Infamous Butterfly Ballot The Infamous Butterfly Ballot Page 3 3 13 13 Engineering Psychology & Engineering Psychology & Human Performance Human Performance The Butterfly Ballot and Human Error The Butterfly Ballot and Human Error – – Failure of arrows to overcome S Failure of arrows to overcome S - - R compatibility R compatibility (natural mappings) . . .
. . .  momentum from reading left - - to to - - right right suggests response to the right of the name suggests response to the right of the name 12 12 The Infamous Butterfly Ballot The Infamous Butterfly Ballot Page 3 3 13 13 Engineering Psychology & Engineering Psychology & Human Performance Human Performance The Butterfly Ballot and Human Error The Butterfly Ballot and Human Error – – Failure of arrows to overcome S Failure of arrows to overcome S - - R compatibility R compatibility (natural mappings) (natural mappings) . . .
. . .  left visual momentum from reading left - - to to - - right right suggests response to the right of the name suggests response to the right of the name 12 12 The Infamous Butterfly Ballot The Infamous Butterfly Ballot Page 3 3 13 13 Engineering Psychology & Engineering Psychology & Human Performance Human Performance The Butterfly Ballot and Human Error The Butterfly Ballot and Human Error – – Failure of arrows to overcome S Failure of arrows to overcome S - - R compatibility R compatibility (natural mappings) . . .
. . .  momentum from reading left - - to to - - right right suggests response to the right of the name suggests response to the right of the name 12 12 The Infamous Butterfly Ballot The Infamous Butterfly Ballot Page 3 3 13 13 Engineering Psychology & Engineering Psychology & Human Performance Human Performance The Butterfly Ballot and Human Error The Butterfly Ballot and Human Error – – Failure of arrows to overcome S Failure of arrows to overcome S - - R compatibility R compatibility (natural mappings) (natural mappings) . . .
. . .  identify potential performance bottlenecks (e.g., high working memory or attentional loads, stressors, etc.) working memory or attentional loads, stressors, etc.) – – eliminate these bottlenecks by changing the human eliminate these bottlenecks by changing the human component of the task component of the task 18 18 Error Remediation Error Remediation Equipment Design: Equipment Design: – – minimize perceptual confusion, make components minimize perceptual confusion, make components distinctive (bad e.g., space shuttle) . . .
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